<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<title>Bootstrap 实例 - 基本的输入框组</title>
	<link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">  
	<script src="http://cdn.static.runoob.com/libs/jquery/2.1.1/jquery.min.js"></script>
	<script src="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<div style="padding:100px 100px 10px;">
    <form class="bs-example bs-example-form" role="form">
        <div class="input-group input-group-lg">
            <span class="input-group-addon">@</span>
            <input type="text " class="form-control" placeholder="dkjfl">
        </div><br>
        <div class="input-group ">
            <input type="text " class="form-control">
            <span class="input-group-addon">.00</span>
        </div><br>
        <div class="input-group input-group-sm">
            <span class="input-group-addon">%</span>
            <input type="text" class="form-control">
            <span class="input-group-addon">.00</span>
        </div>
    </form>
    
</div>

</body>
</html>